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ASTM A242 HSLA Steel vs. EN 1.8509 Steel

Both ASTM A242 HSLA steel and EN 1.8509 steel are iron alloys. They have a very high 97% of their average alloy composition in common. There are 31 material properties with values for both materials. Properties with values for just one material (2, in this case) are not shown.

For each property being compared, the top bar is ASTM A242 HSLA steel and the bottom bar is EN 1.8509 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 150
340
Elastic (Young's, Tensile) Modulus, GPa 190
190
Elongation at Break, % 22
11
Fatigue Strength, MPa 230
580
Poisson's Ratio 0.29
0.29
Shear Modulus, GPa 73
73
Shear Strength, MPa 310
680
Tensile Strength: Ultimate (UTS), MPa 490
1130
Tensile Strength: Yield (Proof), MPa 330
940

Thermal Properties

Latent Heat of Fusion, J/g 250
250
Maximum Temperature: Mechanical, °C 400
440
Melting Completion (Liquidus), °C 1460
1450
Melting Onset (Solidus), °C 1420
1410
Specific Heat Capacity, J/kg-K 470
480
Thermal Conductivity, W/m-K 52
39
Thermal Expansion, µm/m-K 13
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 7.1
7.5
Electrical Conductivity: Equal Weight (Specific), % IACS 8.1
8.6

Otherwise Unclassified Properties

Base Metal Price, % relative 1.9
2.8
Density, g/cm3 7.9
7.8
Embodied Carbon, kg CO2/kg material 1.4
1.6
Embodied Energy, MJ/kg 18
22
Embodied Water, L/kg 46
65

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 95
120
Resilience: Unit (Modulus of Resilience), kJ/m3 290
2340
Stiffness to Weight: Axial, points 13
13
Stiffness to Weight: Bending, points 24
25
Strength to Weight: Axial, points 17
40
Strength to Weight: Bending, points 17
31
Thermal Diffusivity, mm2/s 14
10
Thermal Shock Resistance, points 14
33

Alloy Composition

Aluminum (Al), % 0
0.8 to 1.2
Carbon (C), % 0 to 0.15
0.38 to 0.45
Chromium (Cr), % 0
1.5 to 1.8
Copper (Cu), % 0.2 to 0.45
0
Iron (Fe), % 98.2 to 99.8
95.5 to 97.1
Manganese (Mn), % 0 to 1.0
0.4 to 0.7
Molybdenum (Mo), % 0
0.2 to 0.35
Phosphorus (P), % 0 to 0.15
0 to 0.025
Silicon (Si), % 0
0 to 0.4
Sulfur (S), % 0 to 0.050
0 to 0.035